There are many smells that woodpeckers hate, but one of the most effective is the smell of vinegar. Woodpeckers have a very sensitive sense of smell, and the strong, acidic odor of vinegar is very unpleasant to them. When they smell vinegar, they will typically fly away and avoid the area.
Other smells that woodpeckers hate include the smell of citrus fruits, such as oranges and lemons, and the smell of peppermint oil. These smells are also very strong and unpleasant to woodpeckers, and they will typically avoid areas where these smells are present.
